Vulnerability Intelligence Report
CVE-2021-46774
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
No Active Exploit Signals
CVSS Base Score
6.7
MEDIUM
Exploitability:0.9
Impact Score:5.3
EPSS Probability:0.51%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | Ryzen™ 3000 series Desktop Processors “Matisse" | various (affected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” | various (affected) |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors “Castle Peak” HEDT | various (affected) |
| AMD | AMD Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3 | various (affected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors “Chagall” WS | various (affected) |
| AMD | 1st Gen AMD EPYC™ Processors | various (affected) |
| AMD | 2nd Gen AMD EPYC™ Processors | various (affected) |
| AMD | 3rd Gen AMD EPYC™ Processors | various (affected) |
| AMD | 4th Gen AMD EPYC™ Processors | various (affected) |
| AMD | AMD EPYC™ Embedded 3000 | various (affected) |
| AMD | AMD EPYC™ Embedded 7002 | various (affected) |
| AMD | AMD EPYC™ Embedded 7003 | various (affected) |
| AMD | AMD Ryzen™ Embedded 5000 | various (affected) |
| AMD | AMD EPYC™ Embedded 7002 | various (affected) |
| AMD | AMD EPYC™ Embedded 3000 | various (affected) |
| AMD | AMD EPYC™ Embedded 7003 | various (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.508%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-03-31T16:50:27 |
| Published | 2023-11-14T18:52:11 |
| Patch Date | 2023-11-14 |
| Last Updated | 2024-10-11T18:07:59 |
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